Fluxgate Compass, Rate Compass, and Marine Electronics

A gyrocompass is similar to a gyroscope in that a compass finds true north by using an (electrically powered) fast-spinning wheel and friction forces in order to exploit the rotation of the Earth. Gyrocompasses are widely used on ships.

They have two main advantages over magnetic compasses: they find true north, i.e., the direction of Earth's rotational axis, as opposed to magnetic north, and they are not affected by ferrous metal in a ship's hull. (No compass is affected by nonferrous metal, although a magnetic compass will be affected by non-ferrous wires with current running through them.) We carry a range of gyrocompass accessories from premier manufacturers.

Fluxgate Compass, Rate Compass, and Marine Electronics
A gyrocompass is similar to a gyroscope in that a compass finds true north by using an (electrically powered) fast-spinning wheel and friction forces in order to exploit the rotation of the Earth. Gyrocompasses are widely used on ships.
They have two main advantages over magnetic compasses:...

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they find true north, i.e., the direction of Earth's rotational axis, as opposed to magnetic north, and they are not affected by ferrous metal in a ship's hull. (No compass is affected by nonferrous metal, although a magnetic compass will be affected by non-ferrous wires with current running through them.) We carry a range of gyrocompass accessories from premier manufacturers.
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